Interference localisation for the Eutelsat satellite system

In its effort to minimise the damage to satellite traffic caused by interference, EUTELSAT undertook, together with DRA (UK Defence Research Agency), a study aimed at determining the benefits provided by the current transmitter location techniques. The study included a theoretical phase and a measurement campaign involving the execution of a number of tests on simulated interference using a transmitter location system (TLS) developed and operated by DRA. As a result of the study, Eutelsat decided to enter into a contract with DRA for the provision of a transmitter location service. This paper discusses the major subjects treated in the study, with special attention to: the benefits, for location accuracy derived from the use of reference signals, the optimum measurement strategy, the potential enhancements of the current system and the manner in which Eutelsat intends to exploit the information provided by the TLS in the context of its network management procedures.